苏安第 - 哈尔滨工业大学

个人简介

Education Background 2018.09-2022.01，新加坡南洋理工大学，博士 2017.09-2018.09，英国伦敦大学学院，硕士 (全院Top10） 2012.09-2016.07，哈尔滨工业大学，学士 Working Experience 2023.11 - 至今，哈尔滨工业大学，教授，博导 2022.02 - 2023.11，哈尔滨工业大学，副教授（青年拔尖），博导 2021.07 - 2022.01，新加坡南洋理工大学，副研究员 Honors & Awards 2021 哈尔滨工业大学青年拔尖人才计划 2021 研究报告入选“英国皇家工程师学会国际青年学者论坛”摘要集（全球24人） 2018 新加坡政府博士全额奖学金

研究领域

High-performance steel structures (such as high strength steel structures and stainless steel structures) have received worldwide attention, owing to the fact that they can effectively promote the sustainable development of the construction industry and achieve the realization of the national carbon peaking and carbon neutrality goals. High-performance steel structures have been gradually applied in high-rise, long-span and heavily-loaded engineering applications. However, the distinct differences of mechanical properties between high-performance steels and mild steels, such as strength and ductility, will affect the bearing capacity, stability and seismic performance of the steel structures. To this end, we focus on improving the safety and economical design of high-performance steel structures, with the outcomes potentially promoting the development of internation design codes. 1. The stability design methods of 690~960 MPa high-strength steel structures were proposed, promoting the establishment of the unified stability design theory system of normal strength steel structures and high-strength steel structures. The cross-section and member behaviour of high-strength steel welded I-section components have been studied by comprehensive experimental and numerical modelling programme. The physical testing included material testing, membrane residual stress measurements, initial local and global geometric imperfection measurements and eccentrically/concentrically loaded tests. The numerical modelling programme was then performed, where finite element models were firstly developed and validated against the test results and then employed to perform parametric studies to generate further numerical data over a wide range of cross-section dimensions, member effective lengths and loading combinations. On the basis of the test and numerical data, more accurate design methods, based on the Continuous Strength Method (CSM), were proposed in terms of failure of local buckling, global buckling and local-global interactive buckling. Compared with the existing design rules, the proposed design methods can save the structural costs of steel structure applications by 20% ~ 30%. 2. The post-fire behaviour of high-strength steel structures was revealed, with the degradation mechanism of 690~960 MPa high strength steel structures clarified. The membrane residual stresses and mechanical properties of high-strength steel welded I-sections after exposure to elevated temperatures were studied through experiments and numerical studies. The experimental programme included heating and cooling of specimens as well as post-fire material testing, initial local geometric imperfection measurements and compression tests. Based on this, the influences of fire temperature on the peak tensile/compressive magnitudes of membrane residual stresses and the degradation laws of the post-fire stress-strain curves of high-strength steels were clarified, which could be used to accurately predict the post-fire residual bearing capacity of high strength steel members. 3. The stability design theories of stainless steel channel section and welded I-section members were established based on CSM. 4. Research into the structural performance of high strength steel built-up section members and 3D printed high-strength steel members is ONGOING!

近期论文

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Zhe Xing, Kaidong Wu*, Andi Su, Yuanqing Wang, Guangen Zhou. Intelligent local buckling design of stainless steel I-sections in fire via Artificial Neural Network. Structures, 2023, 58:105356 Yong Mei, Yao Cui, Chicheng Ma, Yao Sun, Andi Su*. Test, numerical simulations and desigh of G550 high strength cold-formed steel lipped channel section columns failing by interactive bucking. Thin-Walled Structures, 2023, 192:111172 Yajin Wang, Hua Yang, Yuyin Wang, Andi Su*. Testing, numerical modelling and design of S890 and S960 ultra-high strength steel circular hollow sections under combined loading. Thin-walled Structures, 2023, 192:111102 Andi Su, Yajin Wang, Kim J.R. Rasmussen, Leroy Gardner*. Structural performance and design of S960 ultra-high strength steel non-slender welded I-sections subjected to combined loading. Engineering Structures, 2023, 293:116593 Andi Su, Hua Yang, Yajin Wang, Ou Zhao*. Experimental and numerical investigations of S960 ultra-high sstrength steel welded I-section beams with in-plane flexural failure. Thin-walled Structures, 2023, 190:110969 Mingxu Shang, Hua Yang*, Andi Su, Yuyin Wang. Strain-rate and stress-rate dependent ductile fracture model of S690 high-strength steel. Journal of Constructional Steel Research, 2023, 204:107852 Andi Su, Ke Jiang, Yuyin Wang, Ou Zhao*. Experimental and numerical investigations of S960 ultra-high sstrength steel welded I-section stub columns after exposure to elevated temperatures. Thin-walled Structures, 2023, 183:110349 Lulu Zhang, Andi Su*, Ou Zhao. Flexural–torsional buckling of pin-ended press-braked S690 high strength steel angle section columns: Testing, modelling and design. Thin-Walled Structures, 2023, 182:110217 Shuai Li, Andi Su*, Ou Zhao. Post-fire behaviour and residual resistance of hot-rolled stainless steel channel sections under major-axis combined loading. Engineering Structures, 2023, 275:115202 Shuai Li, Andi Su*, Ou Zhao Structural behaviour of press-braked austenitic stainless steel slender channel section beam-columns. Engineering Structures, 2023, 281:115818 Yukai Zhong, Andi Su*, Ou Zhao. Post-fire local buckling behaviour of cold-formed S700 high strength steel circular hollow sections under axial compression: Experiments, modelling and design. Thin-Walled Structures, 2023, 184:110511